blob: d9c9829c8b206118b665d282f847e7809887fb33 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#include <linux/types.h>
2#include <linux/string.h>
3#include <linux/kernel.h>
Paul Gortmaker38789fd2011-07-17 15:33:58 -04004#include <linux/export.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07005#include <linux/interrupt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07006#include <linux/ide.h>
7#include <linux/bitops.h>
8
Linus Torvalds1da177e2005-04-16 15:20:36 -07009/**
10 * ide_toggle_bounce - handle bounce buffering
11 * @drive: drive to update
12 * @on: on/off boolean
13 *
14 * Enable or disable bounce buffering for the device. Drives move
15 * between PIO and DMA and that changes the rules we need.
16 */
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +010017
Linus Torvalds1da177e2005-04-16 15:20:36 -070018void ide_toggle_bounce(ide_drive_t *drive, int on)
19{
20 u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */
21
James Bottomley65931782005-11-18 23:13:33 +010022 if (!PCI_DMA_BUS_IS_PHYS) {
23 addr = BLK_BOUNCE_ANY;
24 } else if (on && drive->media == ide_disk) {
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +010025 struct device *dev = drive->hwif->dev;
26
27 if (dev && dev->dma_mask)
28 addr = *dev->dma_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 }
30
31 if (drive->queue)
32 blk_queue_bounce_limit(drive->queue, addr);
33}
34
Sergei Shtylyov745483f2009-04-08 14:13:02 +020035u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010036{
Sergei Shtylyov745483f2009-04-08 14:13:02 +020037 struct ide_taskfile *tf = &cmd->tf;
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010038 u32 high, low;
39
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010040 low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
Sergei Shtylyov745483f2009-04-08 14:13:02 +020041 if (lba48) {
42 tf = &cmd->hob;
43 high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
44 } else
45 high = tf->device & 0xf;
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010046
47 return ((u64)high << 24) | low;
48}
Bartlomiej Zolnierkiewicza5016332008-01-25 22:17:17 +010049EXPORT_SYMBOL_GPL(ide_get_lba_addr);
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010050
51static void ide_dump_sector(ide_drive_t *drive)
52{
Bartlomiej Zolnierkiewicz22aa4b32009-03-27 12:46:37 +010053 struct ide_cmd cmd;
54 struct ide_taskfile *tf = &cmd.tf;
Bartlomiej Zolnierkiewicz97100fc2008-10-13 21:39:36 +020055 u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010056
Bartlomiej Zolnierkiewicz22aa4b32009-03-27 12:46:37 +010057 memset(&cmd, 0, sizeof(cmd));
Sergei Shtylyov60f85012009-04-08 14:13:01 +020058 if (lba48) {
59 cmd.valid.in.tf = IDE_VALID_LBA;
60 cmd.valid.in.hob = IDE_VALID_LBA;
61 cmd.tf_flags = IDE_TFLAG_LBA48;
62 } else
63 cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE;
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010064
Sergei Shtylyov3153c262009-04-08 14:13:03 +020065 ide_tf_readback(drive, &cmd);
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010066
67 if (lba48 || (tf->device & ATA_LBA))
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +010068 printk(KERN_CONT ", LBAsect=%llu",
Sergei Shtylyov745483f2009-04-08 14:13:02 +020069 (unsigned long long)ide_get_lba_addr(&cmd, lba48));
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010070 else
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +010071 printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
72 tf->device & 0xf, tf->lbal);
Bartlomiej Zolnierkiewiczc2b57cd2008-01-25 22:17:17 +010073}
74
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +010075static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
Linus Torvalds1da177e2005-04-16 15:20:36 -070076{
Bartlomiej Zolnierkiewicz26bfcf22009-05-22 16:23:37 +020077 printk(KERN_CONT "{ ");
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +010078 if (err & ATA_ABORTED)
79 printk(KERN_CONT "DriveStatusError ");
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +020080 if (err & ATA_ICRC)
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +010081 printk(KERN_CONT "%s",
82 (err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
83 if (err & ATA_UNC)
84 printk(KERN_CONT "UncorrectableError ");
85 if (err & ATA_IDNF)
86 printk(KERN_CONT "SectorIdNotFound ");
87 if (err & ATA_TRK0NF)
88 printk(KERN_CONT "TrackZeroNotFound ");
89 if (err & ATA_AMNF)
90 printk(KERN_CONT "AddrMarkNotFound ");
91 printk(KERN_CONT "}");
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +020092 if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
93 (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +010094 struct request *rq = drive->hwif->rq;
95
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +010096 ide_dump_sector(drive);
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +010097
98 if (rq)
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +010099 printk(KERN_CONT ", sector=%llu",
Tejun Heo9780e2d2009-05-07 22:24:40 +0900100 (unsigned long long)blk_rq_pos(rq));
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100101 }
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100102 printk(KERN_CONT "\n");
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100103}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100105static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
106{
Bartlomiej Zolnierkiewicz26bfcf22009-05-22 16:23:37 +0200107 printk(KERN_CONT "{ ");
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100108 if (err & ATAPI_ILI)
109 printk(KERN_CONT "IllegalLengthIndication ");
110 if (err & ATAPI_EOM)
111 printk(KERN_CONT "EndOfMedia ");
112 if (err & ATA_ABORTED)
113 printk(KERN_CONT "AbortedCommand ");
114 if (err & ATA_MCR)
115 printk(KERN_CONT "MediaChangeRequested ");
116 if (err & ATAPI_LFS)
117 printk(KERN_CONT "LastFailedSense=0x%02x ",
118 (err & ATAPI_LFS) >> 4);
119 printk(KERN_CONT "}\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120}
121
122/**
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100123 * ide_dump_status - translate ATA/ATAPI error
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 * @drive: drive that status applies to
125 * @msg: text message to print
126 * @stat: status byte to decode
127 *
128 * Error reporting, in human readable form (luxurious, but a memory hog).
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100129 * Combines the drive name, message and status byte to provide a
130 * user understandable explanation of the device error.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 */
132
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100133u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134{
Bartlomiej Zolnierkiewicz0e38a662008-01-25 22:17:12 +0100135 u8 err = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100137 printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +0200138 if (stat & ATA_BUSY)
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100139 printk(KERN_CONT "Busy ");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140 else {
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100141 if (stat & ATA_DRDY)
142 printk(KERN_CONT "DriveReady ");
143 if (stat & ATA_DF)
144 printk(KERN_CONT "DeviceFault ");
145 if (stat & ATA_DSC)
146 printk(KERN_CONT "SeekComplete ");
147 if (stat & ATA_DRQ)
148 printk(KERN_CONT "DataRequest ");
149 if (stat & ATA_CORR)
150 printk(KERN_CONT "CorrectedError ");
151 if (stat & ATA_IDX)
152 printk(KERN_CONT "Index ");
153 if (stat & ATA_ERR)
154 printk(KERN_CONT "Error ");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 }
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100156 printk(KERN_CONT "}\n");
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +0200157 if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
Bartlomiej Zolnierkiewicz64a57fe2008-02-06 02:57:51 +0100158 err = ide_read_error(drive);
Bartlomiej Zolnierkiewicz2f996ac2008-12-29 20:27:36 +0100159 printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
Bartlomiej Zolnierkiewicze62925d2008-01-25 22:17:17 +0100160 if (drive->media == ide_disk)
161 ide_dump_ata_error(drive, err);
162 else
163 ide_dump_atapi_error(drive, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 }
Bartlomiej Zolnierkiewiczcc301372009-05-22 16:23:38 +0200165
166 printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
167 drive->name, drive->hwif->cmd.tf.command);
168
Bartlomiej Zolnierkiewicz0e38a662008-01-25 22:17:12 +0100169 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171EXPORT_SYMBOL(ide_dump_status);